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    Joint Adaptive Modulation and Combining for Hybrid FSO/RF Systems

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    Type
    Conference Paper
    Authors
    Rakia, Tamer
    Yang, Hong-Chuan
    Gebali, Fayez
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2015-11-12
    Online Publication Date
    2015-11-12
    Print Publication Date
    2015-10
    Permanent link to this record
    http://hdl.handle.net/10754/621253
    
    Metadata
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    Abstract
    In this paper, we present and analyze a new transmission scheme for hybrid FSO/RF communication system based on joint adaptive modulation and adaptive combining. Specifically, the data rate on the FSO link is adjusted in discrete manner according to the FSO link's instantaneous received signal-to-noise-ratio (SNR). If the FSO link's quality is too poor to maintain the target bit-error-rate, the system activates the RF link along with the FSO link. When the RF link is activated, simultaneous transmission of the same modulated data takes place on both links, where the received signals from both links are combined using maximal ratio combining scheme. In this case, the data rate of the system is adjusted according to the instantaneous combined SNRs. Novel analytical expression for the cumulative distribution function (CDF) of the received SNR for the proposed adaptive hybrid system is obtained. This CDF expression is used to study the spectral and outage performances of the proposed adaptive hybrid FSO/RF system. Numerical examples are presented to compare the performance of the proposed adaptive hybrid FSO/RF system with that of switch-over hybrid FSO/RF and FSO-only systems employing the same adaptive modulation schemes. © 2015 IEEE.
    Citation
    Rakia T, Yang H-C, Gebali F, Alouini M-S (2015) Joint Adaptive Modulation and Combining for Hybrid FSO/RF Systems. 2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB). Available: http://dx.doi.org/10.1109/ICUWB.2015.7324467.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)
    Conference/Event name
    IEEE International Conference on Ubiquitous Wireless Broadband, ICUWB 2015
    DOI
    10.1109/ICUWB.2015.7324467
    Additional Links
    http://ieeexplore.ieee.org/document/7324467
    ae974a485f413a2113503eed53cd6c53
    10.1109/ICUWB.2015.7324467
    Scopus Count
    Collections
    Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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